Edexcel: 11th and 14th June 2013 (Linear) 1MA0/1H + 2H (Official Thread)

Hi sir, thank you for the hint ,but, question b and c are completely throwing me. Tried pythagoras, but I dont see whats equal to each other ( as the question asks you to show that 2a+2b+1=2c). Ive tried similar triangles.. everything! I know the answer will be something staring me in the face but at the moment i cant see it

Sameeeeeeeeeeeeee

Have a go at some of the questions in the 100 Hard GCSE questions.
Lot's on both topics in there.

hi im retaking this exam to try and push for an A *fingers crossed*

I haven't really done loads of revision up to now cos im doing my AS exams too so what do u recommend i do to revise for the next 12 days or so?

many thanks

Have a go at some of the questions in the 100 Hard GCSE questions.
Lot's on both topics in there.

Triangle (1)

a^2 + b^2 = c^2 (call this equation 1)

Triangle (2)

(a+1)^2 + (b+1)^2 = (c+1)^2 (call this equation 2)

Now expand the backets on equation 2
You know from equation 1 c^2 = a^2 + b^2
Substitute that expression in for c^2 in equation 2
Tidy up

Last part:
I can think of 3 different ways:

(1) The RHS of the equation must be odd as 2(a+b) +1 is odd
and the LHS of the equation is even as 2c is even.

Therefore they cannot be integers

(2) divide both sides by 2 and factor:
(a+b) +1/2 = c
If c is an integer than a + b can't be (or similar)/

(3) rearrange to give (c-b-a)=1/2
3 integers can't sum to give a non integer value.

Haha oh my god, thank you so much! I can see now where i should have gone. I had some of your above working, but i couldnt focus it onto a particular end point of my calculations. If you dont mind, or if you have time, would you mind making a video on it. It would really help me and im sure others may have had similar issues.

Thanks so much!

Revision differs for each student IMO.
If you are happy with all topics then past papers could be a good idea.
If though there are topics you either need to learn or revise go back and work on those.
How you revise is also very personal. Some students will like videos, some like book work and others like to 'measure' themselves against past paper grade boundaries.
One size doesn't fit all.
I used to happily sit and do 8-10 past papers back to back on the day before. That is certainly not ideal for many.
I learn by self teaching and having lot's of different books to read from.
Find what works for you but do something other than putting a revision timetable together. (which is what many students seem to do when they don't quite know what revision to do!)
As Nike say.....Just do it.
Good luck with your exams.

thanks for the reply
do u by any chance know what/where i can find the exam spec for the 1MAOH papers on 11th and 14th?

Here:

http://www.edexcel.com/quals/gcse/gcse10/maths/maths-a/Pages/default.aspx

thank you!! (major + rep)

don't suppose you have access to the edexcel past papers in that section? as im revising currently from aqa papers lol

thanks again

I'm taking this exam and it is my first time. I would like an A* but will most likely get an A which is a bad thing

What does everyone think will be the A\ A* topics that will come up on the calculator paper?

Also what other things do you reckon are likely to appear ???


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would you say our exam is likely to be like the June 2012 paper or March 2013 paper???